Nadia Davy (born 24 December 1980) is a Jamaican American track and field athlete, competing internationally for Jamaica. She was a bronze medalist in the 4 x 400-meter relay at the 2004 Olympic Games in Athens, Greece.

Davy was born in Jamaica but grew up in Bridgeton, New Jersey. She graduated from Bridgeton High School, where she ran track, in 1999. She set a Bridgeton High School record in the 400-meter dash with a time of 54.04 seconds. She earned six state titles in high school, including ones in the 1999 indoor and outdoor 400-meter championships.

Davy went to Louisiana State University to run track after high school. She was a seven-time All American at LSU and currently holds the school record in the Women’s 400 meters with a time of 50.66 seconds, which she set in 2003 in her junior year.

Davy qualified for the 2004 Jamaican Olympic team after a first-place finish in the 400 meters (50.76 seconds) at the JAAA/Supreme Ventures National Senior Championships in Kingston, Jamaica.

Davy ran two events in Athens, the 400-meter individual and the 4×400 meter relay. In the 400 meters, she ran a time of 52.04 seconds and did not place.

She won a bronze medal for the 4 x 400-meter relay (3:22:00). Davy contributed a time of 50.24 seconds during the third leg.

Davy lives in Bridgeton, New Jersey where she works at her high school as an instructional aide and assistant track coach. She has a son and daughter and is currently working toward a master’s degree in counselling from Wilmington University in Delaware.